The name of the book as well as the names of it chapters are taken from a Finnish song Päivänsäde ja Menninkäinen by Tapio Rautavaara and Reino Helismaa, which says "Kas, menninkäinen ennen päivänlaskua ei voi milloinkaan olla päällä maan" (translated "A troll cannot ever stay above the ground before sundown").
The band is known for its melancholic lyrics, drawing inspiration from Finnish romance movies of the 1950s and Finnish singers of the era, including Reino Helismaa.
Reino Helismaa | Reino Valkama | Reino Häyhänen | Reino de Tormentas |